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Finding the Fourth Proportional to 543,515.22, 750,120.20 and 328,656.81

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Solution

The fourth proportional to 543,515.22, 750,120.20 and 328,656.81 is: 453,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,515.22 : 750,120.20 = 328,656.81 : x
  2. Step 2: Convert to fraction form
    543,515.22/750,120.20 = 328,656.81/x
  3. Step 3: Cross multiply
    543,515.22x = 750,120.20 × 328,656.81
  4. Step 4: Simplify right side
    543,515.22x = 246,532,112,048.56
  5. Step 5: Solve for x
    x = 246,532,112,048.56/543,515.22
  6. Step 6: Final answer
    x = 453,588.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.